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  #1  
Old 02-18-2010, 02:44 PM
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Default unknown tube
what is this tube connected to the back of the intake hose
 
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Old 02-18-2010, 02:50 PM
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well if that guy plugs into the back of the upper portion of the air cleaner housing (in the back) i always just assumed it was a vac hose
 
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Old 02-18-2010, 02:53 PM
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That appears to be the main intake vac line. It is essentially the counterpart to the PCV valve on the other side of the engine.
 
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Old 02-18-2010, 02:55 PM
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It is the fresh air return to the crankcase. Basically, the PCV valve pulls off crankcase vapors. This is the vent to allow clean air back into the crankcase.
 
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Old 02-18-2010, 03:25 PM
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Ok thanks for the super quick response!!

It was unplugged, and i was just wondering what it was

i got it plugged back in


Thanks!!
 
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Old 02-20-2010, 08:48 AM
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What is this tubes purpose?
 
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